Sensitivity

Allergies are the immune system's reaction to his unfamiliar materials, such as pollen granules, poison as a result of bee sting or animal dander.
The immune system produces a protein called antibody. These antibodies protect the body from foreign objects unwanted, which may invade the body and cause disease or infection. When someone suffers from allergies (allergic) to a particular substance, the immune system produces antibodies determine Almstarj and deal with him as a harmless, though it is not the case, leading to the secretion of histamine and other substances caused the emergence of symptoms of allergic reactions.
May cause an allergic reaction different symptoms can appear on the skin, sinuses, in the respiratory airways and in the gastrointestinal tract. Unit vary sensitivity and severity of allergies from one person to another, as it can range from a slight sensitivity between the alarm and even anaphylaxis, a state of emergency that could cause death. Can not be cured of allergies, but there are some treatments that help relieve symptoms of allergies.
Allergy symptoms
 Allergy symptoms vary with the same sensitivity, from one person to another. Allergy symptoms may appear in the respiratory airways, in the sinuses and nasal passages, the skin and in the gastrointestinal tract. An allergic reaction, in most cases, a nuisance and a narrow but minor allergy symptoms. The reactions in the case of severe allergies may be more dangerous, because it may affect many organs and systems in the body. But in the most severe allergies, it is possible to trigger allergic reaction can cause death. This phenomenon is known as (Anaphylaxis - a severe allergic response with hypersensitivity to proteins or other substances that lead to severe disorders in the respiratory and circulatory / vascular).
Hay fever, also called allergic rhinitis, can cause:
Nasal congestion, itchingRunny noseAladmaa or swelling of the eyes
Atopic dermatitis, also known as eczema, may cause:
Itching of the skinRedness of the skin
 Peel off the skin
Prevention of allergies
Prevention of allergies depends on the type of allergy. As general guidance for the prevention of allergies include the following recommendations:

    Avoid common allergens - allergens materials known and common usually include: airborne allergens out of the house, at home or in the workplace, Oriental certain, some insects and some medicines. Certain symptoms of allergies appear and aggravated by extreme heat or stress.
  
 Develop a medical alert bracelet - for people who had previously appeared to have a severe allergic reaction and severe.